Updated at 6.54pm: Guangdong Party chief Zhang De-jiang said Hong Kong would play a key role in China's economy and act as the entrepot for capital flowing into the Pan-Pearl River Delta, local media reported on Monday. Mr Zhang, a Politburo member of the 16th CPC Central Committee and Secretary of the Guangdong Provincial Party Committee, said Hong Kong was integral in China's plans to develop an affluent economy. This conforms to the economic vision outlined by former president Jiang Zemin. Mr Zhang also said Hong Kong's role in the Pan-Pearl River Delta concept was 'irreplaceable'. This was because of the territory's aviation links, financial services and information exchange. The Pan-Pearl River Delta concept encourages co-operation between nine mainland provinces, Hong Kong and Macau. This includes co-operation on the economy, transport, logistics, education, cultural areas, technology and tourism. Mr Zhang arrived in Hong Kong on Monday morning. He will host the first Pan-Pearl River Delta Co-operation and Development Forum on Tuesday. Mr Zhang will deliver keynote speeches at the forum. He told Ming Pao that the forum would announce details about the Pan-Pearl River Delta concept. It would also set up offices and branches to encourage co-operation between the 11 areas. These provinces will take turns hosting summits. The first economic summit would be held in Guangzhou in mid-July, he said. Mr Zhang also said a decision should be reached by November on construction of the proposed bridge linking Hong Kong with Zhuhai and Macau. On Monday, Chief Executive Tung Chee-hwa accompanied Mr Zhang and the mainland delegations - including representatives from the nine provinces - on a visit to Hong Kong's Stock Exchange and Tsing Ma Bridge. The forum will move to Macau on Wednesday and close in Guangzhou on Thursday.